Ordinarily, I'd go with Valve, but given how the wait for Half Life 3 has gone from teasing with fervent anticipation, to ridiculously frustrating since they refuse to say anything about it, and given how good great Bioshock Infinite turned out, and how Irrational is no more, I got to give the nod to them. If for no other reason then for it to be a final hurrah.

ResonanceSD:It's Dota 2, Portal, Steam, SteamOS, Steam Machines, Steam Music and all the other things Valve has done since HL2 vs. The "Shock" series.

Shouldn't these things be decided on a by-year basis? The only game that Valve released in 2013 was Dota 2, whereas Irrational had the glorious Bioshock: Infinite. It's not everything Valve has ever done vs. everything Irrational has ever done, to my understanding, it's everything Valve did in 2013 vs. everything Irrational did in 2013. For that, I can only vote for Irrational, in good conscience.